Mouthpiece of a smoking article



FIG. 1 is a perspective view of a mouthpiece of a smoking article showing our new design.

FIG. 2 is top plan view thereof; and,

FIG. 3 is a cross-sectional view thereof taken along the line III-III shown in FIG. 2. 

CLAIM The ornamental design for a mouthpiece of a smoking article, as shown and described. 